NASDAQ:REGN | Historical Stock Price | REGENERON PHARMACEUTICALS, INC.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1991-04-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$3.27$10.74$35.35$116.32$382.72$1,259.251991-04-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2015

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2015-12-31$542.87$542.87310,500
2015-12-30$548.19$548.19297,400
2015-12-29$550.21$550.21519,700
2015-12-28$540.28$540.28351,000
2015-12-24$537.63$537.63169,400
2015-12-23$535.85$535.85415,300
2015-12-22$528.34$528.34621,800
2015-12-21$532.55$532.55863,300
2015-12-18$544.23$544.231,188,300
2015-12-17$551.49$551.49618,900
2015-12-16$559.67$559.67741,100
2015-12-15$556.45$556.45782,600
2015-12-14$539.94$539.94630,500
2015-12-11$534.51$534.51699,500
2015-12-10$548.17$548.17554,400
2015-12-09$547.39$547.39566,000
2015-12-08$556.33$556.33440,500
2015-12-07$546.61$546.61491,200
2015-12-04$558.66$558.66621,600
2015-12-03$535.73$535.73748,300
2015-12-02$546.88$546.88698,800
2015-12-01$545.74$545.74651,400
2015-11-30$544.50$544.50866,500
2015-11-27$563.10$563.10466,600
2015-11-25$561.69$561.69774,100
2015-11-24$567.47$567.47673,900
2015-11-23$570.85$570.85856,900
2015-11-20$579.57$579.57745,700
2015-11-19$581.35$581.35584,800
2015-11-18$587.09$587.09708,000
2015-11-17$570.91$570.91692,000
2015-11-16$558.38$558.38574,000
2015-11-13$548.90$548.90548,700
2015-11-12$552.53$552.53579,400
2015-11-11$566.41$566.41597,400
2015-11-10$564.86$564.86570,200
2015-11-09$558.52$558.52658,100
2015-11-06$562.00$562.00666,200
2015-11-05$564.16$564.161,035,500
2015-11-04$564.00$564.001,526,500
2015-11-03$578.00$578.00944,500
2015-11-02$579.00$579.00993,800
2015-10-30$557.39$557.39731,900
2015-10-29$560.02$560.02693,300
2015-10-28$571.14$571.14890,200
2015-10-27$567.79$567.79898,400
2015-10-26$545.87$545.87709,600
2015-10-23$536.70$536.70804,500
2015-10-22$525.11$525.11972,700
2015-10-21$518.53$518.53868,100
2015-10-20$514.67$514.67707,800
2015-10-19$523.56$523.56871,000
2015-10-16$514.59$514.59754,600
2015-10-15$519.35$519.35735,300
2015-10-14$509.28$509.28774,700
2015-10-13$508.04$508.04984,500
2015-10-12$526.83$526.831,306,600
2015-10-09$503.92$503.92899,300
2015-10-08$491.21$491.21840,200
2015-10-07$485.76$485.761,271,000
2015-10-06$459.82$459.821,114,300
2015-10-05$473.14$473.14915,000
2015-10-02$479.07$479.071,159,600
2015-10-01$472.97$472.97877,100
2015-09-30$465.14$465.141,452,200
2015-09-29$451.82$451.821,621,200
2015-09-28$453.98$453.983,128,600
2015-09-25$490.67$490.671,522,800
2015-09-24$522.00$522.001,050,400
2015-09-23$536.50$536.50990,000
2015-09-22$530.18$530.18924,700
2015-09-21$529.38$529.38888,600
2015-09-18$550.36$550.361,191,600
2015-09-17$550.97$550.97818,600
2015-09-16$540.99$540.99447,600
2015-09-15$541.45$541.45464,500
2015-09-14$531.40$531.40345,000
2015-09-11$533.30$533.30518,800
2015-09-10$531.22$531.22522,500
2015-09-09$527.35$527.35567,700
2015-09-08$542.76$542.761,242,200
2015-09-04$499.99$499.99806,700
2015-09-03$508.51$508.51608,100
2015-09-02$518.78$518.78748,500
2015-09-01$496.42$496.42899,200
2015-08-31$513.50$513.50835,300
2015-08-28$536.70$536.70507,800
2015-08-27$538.00$538.00759,500
2015-08-26$535.47$535.471,064,500
2015-08-25$499.02$499.021,235,200
2015-08-24$504.58$504.581,757,000
2015-08-21$527.18$527.181,501,700
2015-08-20$546.65$546.65790,400
2015-08-19$568.91$568.91477,200
2015-08-18$569.67$569.67581,200
2015-08-17$576.76$576.76444,700
2015-08-14$576.30$576.30491,500
2015-08-13$574.10$574.10515,700
2015-08-12$579.25$579.25856,000
2015-08-11$566.99$566.99760,900
2015-08-10$581.00$581.00640,300
2015-08-07$579.04$579.04793,900
2015-08-06$582.47$582.47726,700
2015-08-05$592.40$592.40730,500
2015-08-04$580.94$580.941,939,800
2015-08-03$554.27$554.27701,700
2015-07-31$553.66$553.66500,400
2015-07-30$547.10$547.10557,000
2015-07-29$546.27$546.27648,500
2015-07-28$552.45$552.45872,000
2015-07-27$540.03$540.03658,300
2015-07-24$541.85$541.85933,400
2015-07-23$556.61$556.61492,500
2015-07-22$556.53$556.53770,500
2015-07-21$560.00$560.00560,100
2015-07-20$561.17$561.17935,500
2015-07-17$551.98$551.98489,000
2015-07-16$551.53$551.53436,800
2015-07-15$543.38$543.38466,700
2015-07-14$542.90$542.90597,200
2015-07-13$536.21$536.21812,700
2015-07-10$526.01$526.01723,500
2015-07-09$509.03$509.03650,700
2015-07-08$509.30$509.30405,900
2015-07-07$517.61$517.61457,500
2015-07-06$512.24$512.24457,600
2015-07-02$511.08$511.08374,700
2015-07-01$506.51$506.51527,700
2015-06-30$510.13$510.13635,800
2015-06-29$504.97$504.97599,900
2015-06-26$520.63$520.63408,200
2015-06-25$519.24$519.24482,900
2015-06-24$516.59$516.59454,900
2015-06-23$521.05$521.05474,500
2015-06-22$520.71$520.71750,800
2015-06-19$522.28$522.281,150,900
2015-06-18$527.97$527.97997,300
2015-06-17$512.89$512.89851,800
2015-06-16$501.76$501.76639,000
2015-06-15$499.06$499.061,302,600
2015-06-12$492.29$492.29982,800
2015-06-11$501.10$501.101,115,600
2015-06-10$512.32$512.321,810,900
2015-06-09$526.09$526.0912,100
2015-06-08$526.09$526.091,025,900
2015-06-05$539.40$539.401,205,600
2015-06-04$518.62$518.62816,700
2015-06-03$514.22$514.22627,900
2015-06-02$508.90$508.90641,600
2015-06-01$513.81$513.81551,200
2015-05-29$512.56$512.56763,500
2015-05-28$512.12$512.12702,500
2015-05-27$515.37$515.37625,700
2015-05-26$506.63$506.63774,100
2015-05-22$513.88$513.88771,400
2015-05-21$516.00$516.00864,100
2015-05-20$512.77$512.77822,500
2015-05-19$504.15$504.15710,800
2015-05-18$496.74$496.74707,200
2015-05-15$489.01$489.01466,800
2015-05-14$491.43$491.43787,700
2015-05-13$477.46$477.46609,800
2015-05-12$479.40$479.40680,800
2015-05-11$477.56$477.56640,800
2015-05-08$481.29$481.291,415,200
2015-05-07$468.62$468.621,340,400
2015-05-06$470.01$470.01844,700
2015-05-05$465.50$465.50552,700
2015-05-04$474.17$474.17592,100
2015-05-01$471.16$471.16710,800
2015-04-30$457.46$457.46683,200
2015-04-29$469.70$469.70808,100
2015-04-28$466.34$466.34909,600
2015-04-27$473.48$473.481,112,700
2015-04-24$480.09$480.09909,000
2015-04-23$480.08$480.081,070,600
2015-04-22$472.63$472.63977,700
2015-04-21$463.22$463.221,177,500
2015-04-20$452.42$452.42346,600
2015-04-17$447.52$447.52677,000
2015-04-16$457.42$457.42603,700
2015-04-15$453.89$453.89616,400
2015-04-14$455.07$455.07443,700
2015-04-13$456.98$456.98479,300
2015-04-10$461.39$461.39587,600
2015-04-09$455.04$455.04465,100
2015-04-08$453.19$453.19563,000
2015-04-07$441.65$441.65507,300
2015-04-06$440.23$440.23631,800
2015-04-02$438.27$438.27797,800
2015-04-01$441.18$441.181,501,000
2015-03-31$451.48$451.48884,200
2015-03-30$459.78$459.78640,600
2015-03-27$454.50$454.50855,900
2015-03-26$448.38$448.381,132,900
2015-03-25$453.99$453.991,415,800
2015-03-24$473.74$473.74839,700
2015-03-23$478.32$478.321,072,600
2015-03-20$488.87$488.871,582,200
2015-03-19$486.02$486.021,142,400
2015-03-18$472.11$472.11996,100
2015-03-17$467.80$467.801,705,400
2015-03-16$451.77$451.771,608,700
2015-03-13$429.38$429.38807,900
2015-03-12$425.16$425.16541,200
2015-03-11$424.55$424.55730,800
2015-03-10$422.84$422.84693,100
2015-03-09$426.87$426.87703,000
2015-03-06$422.13$422.13744,600
2015-03-05$428.95$428.951,165,800
2015-03-04$413.04$413.04590,500
2015-03-03$412.51$412.51586,600
2015-03-02$418.44$418.44613,400
2015-02-27$413.84$413.84811,000
2015-02-26$419.87$419.87690,400
2015-02-25$423.04$423.04764,700
2015-02-24$420.64$420.64723,400
2015-02-23$425.11$425.11865,500
2015-02-20$423.78$423.78886,600
2015-02-19$426.60$426.601,451,000
2015-02-18$405.80$405.80478,700
2015-02-17$404.18$404.18731,100
2015-02-13$402.40$402.40802,700
2015-02-12$401.74$401.74660,900
2015-02-11$398.99$398.99690,500
2015-02-10$400.71$400.711,580,900
2015-02-09$399.72$399.721,023,800
2015-02-06$406.86$406.86625,600
2015-02-05$413.87$413.87760,300
2015-02-04$401.36$401.361,195,100
2015-02-03$409.20$409.20933,100
2015-02-02$413.09$413.09637,700
2015-01-30$416.66$416.661,060,000
2015-01-29$414.64$414.64583,500
2015-01-28$408.00$408.00641,000
2015-01-27$415.74$415.74704,800
2015-01-26$423.77$423.77453,600
2015-01-23$420.21$420.21387,600
2015-01-22$420.81$420.81589,500
2015-01-21$418.11$418.11687,400
2015-01-20$421.11$421.11803,000
2015-01-16$408.69$408.691,036,700
2015-01-15$397.12$397.12982,900
2015-01-14$404.31$404.31968,600
2015-01-13$406.49$406.491,438,200
2015-01-12$413.33$413.33664,500
2015-01-09$411.04$411.041,207,600
2015-01-08$403.25$403.251,184,500
2015-01-07$407.72$407.72880,600
2015-01-06$396.89$396.891,262,400
2015-01-05$412.47$412.47882,800
2015-01-02$410.16$410.16765,900